<template>
  <el-card shadow="never" class="border-0">
    <!-- 新增|刷新 -->
     <ListHeader @create="handleCreate" @refresh="getData"/>
   

    <el-table :data="tableData" stripe style="width: 100%" v-loading="loading">
      <el-table-column label="优惠卷名称" width="350">
         <template #default="{row}">
            <div class="border border-dashed py-2 px-4 rounded" :class="row.statusText =='领取中' ? 'active' :'inactive:'">
              <h5 class="font-bold text-md">{{ row.name }}</h5>
              <small>{{ row.start_time }} ~ {{ row.end_time }}</small>
            </div>
         </template>
      </el-table-column>
      <el-table-column prop="statusText" label="状态" />
      <el-table-column label="优惠">
        <template  #default="{ row }">
          {{ row.type ==0 ? "满减" : "折扣" }} {{row.type == 0 ? ("￥"+row.value) : ( row.value+"折") }}
        </template>
      </el-table-column>
      <el-table-column prop="total" label="发放数量" />
      <el-table-column prop="used" label="已使用" />

      <el-table-column label="操作" width="180" align="center">
        <template #default="scope"> <!---声明作用域插槽，接收scope参数-->
          <el-button v-if="scope.row.statusText == '未开始'" type="primary" size="small" text @click="handleEdit(scope.row)">
            修改
          </el-button>

          <el-popconfirm v-if="scope.row.statusText !== '领取中'" title="是否要删除该优惠卷?" confirm-button-text="确认" cancel-button-text="取消"
            @confirm="handleDelete(scope.row.id)">  <!---访问数据行的id-->
            <template #reference>
              <el-button text type="primary" size="small">
                删除
              </el-button>
            </template>
          </el-popconfirm>

          <el-popconfirm v-if="scope.row.statusText == '领取中'" title="是否要删除该优惠卷失效?" confirm-button-text="失效" cancel-button-text="取消"
            @confirm="handleStatusChange(0,scope.row)">  <!---访问数据行的id-->
            <template #reference>
              <el-button  type="danger" size="small">
                失效
              </el-button>
            </template>
          </el-popconfirm>

        </template>
      </el-table-column>
    </el-table>
    <div class="flex items-center justify-center mt-5">
      <el-pagination background layout="prev,pager,next" :total="total" :current-page="currentPage" :page-size="limit"
        @current-change="getData" />
    </div>

    <FormDrawer ref="formDrawerRef" :title="drawerTitle" @submit="handleSubmit">
      <el-form :model="form" ref="formRef" :rules="rules" label-width="80px" :inline="false">
        <el-form-item label="优惠卷名称" prop="name">
          <el-input v-model="form.name" placeholder="优惠卷名称" style="width: 50%"></el-input>
        </el-form-item>
        <el-form-item label="类型" prop="type">
          <el-radio-group v-model="form.type" >
            <el-radio :label="0">满减</el-radio>
            <el-radio :label="1">折扣</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="面值" prop="value">
          <el-input v-model="form.value" placeholder="面值" style="width: 50%;">
            <template #append>{{form.type ? "折" : "元"}}</template>
          </el-input>
        </el-form-item>
        <el-form-item label="发行量" prop="total">
          <el-input-number v-model="form.total" :min="0" :max="10000" >
          </el-input-number>
        </el-form-item>
        <el-form-item label="最低使用价格" prop="min_price">
          <el-input v-model="form.min_price" placeholder="最低使用价格" type="number"></el-input>
        </el-form-item>
        <el-form-item label="排序" prop="order">
           <el-input-number v-model="form.order" :min="0" :max="1000" >
          </el-input-number>
        </el-form-item>
        <el-form-item label="活动时间">
          <el-date-picker
            :editable="false"
            v-model="timerange"
            value-format="YYYY-MM-DD HH:mm:ss"
            type="datetimerange"
            range-separator="To"
            start-placeholder="开始时间"
            end-placeholder="结束时间"
          />
        </el-form-item>
        <el-form-item label="描述" prop="desc">
          <el-input v-model="form.desc" placeholder="描述" type="textarea" :rows="5"></el-input>
        </el-form-item>
      </el-form>
    </FormDrawer>
  </el-card>
</template>

<script setup>
import FormDrawer from '@/components/FormDrawer.vue'
import {
  getCouponList,
  createCoupon,
  updateCoupon,
  deleteCoupon,
  updateCouponStatus
} from "@/api/coupon"
import {useInitTable,useInitForm} from "@/composables/useCommon"
import ListHeader from '@/components/ListHeader.vue'
import { computed } from 'vue'


function formatStatus(row){
  let s = "领取中"
  let start_time = (new Date((row.start_time))).getTime() //转化为时间戳，并拿到时间戳
  let now = (new Date()).getTime() //拿到当前的时间戳
  let end_time = (new Date((row.end_time))).getTime()
  if(start_time > now){
    s="未开始"
  }else if(end_time < now){
    s="已结束"
  }else if(row.status == 0){
    s="已失效"
  }
  return s
}


//二次封装列表，分页，搜索
const {
    tableData,
    loading,
    currentPage,
    total,
    limit,
    getData,
    handleDelete,
    handleStatusChange
}  = useInitTable({
  getList:getCouponList,
  onGetListSuccess:(res)=>{
    tableData.value = res.list.map(o=>{
      //转化优惠卷状态
      o.statusText = formatStatus(o)
      return o //确保新数组内有对象
    })
    total.value = res.totalCount
    
  },
  delete:deleteCoupon,
  updateStatus:updateCouponStatus
})




//二次封装的新增和修改
const {
    formDrawerRef,
    formRef,
    form,
    rules,
    drawerTitle,
    handleSubmit,
    handleCreate,
    handleEdit
} = useInitForm({
  form:{
    name:"",
    type:0,
    value:0,
    total:100,
    min_price:0,
    start_time:null,
    end_time:null,
    order:50,
    desc:""
  },
  getData,
  update:updateCoupon,
  create:createCoupon,


  beforSubmit:(f)=>{
   if(typeof f.start_time != "number"){
        f.start_time = (new Date(f.start_time)).getTime()
   }
    if(typeof f.end_time != "number"){
        f.end_time = (new Date(f.end_time)).getTime()
   }
   return f  //提交时通过 {...form} 创建浅拷贝的对象--传回来了
  }
})


const timerange = computed({  //双向绑定
  get(){
    return form.start_time && form.end_time ? [form.start_time,form.end_time] : []
  },
  set(val){
    form.start_time = val[0]
    form.end_time = val[1]
  }
})
</script>

<style scoped>

.active{
  @apply border-rose-200 bg-rose-50 text-red-400
}

.inactive{
  @apply border-gray-200 bg-gray-50 text-gray-400
}
</style>